body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
}
header {
    background-color: #e3e3e3;
    padding: 20px;
    text-align: center;
}
h1 {
    color: #333;
}
.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    grid-gap: 20px;
    padding: 20px;
}
.image-item {
    border-radius: 5px;
    overflow: hidden;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}
.image-item img {
    width: 100%;
    height: auto;
    display: block;
}
